Use a bloom filter.

src/types/mod.rs

@@ -1,5 +1,6 @@
 //! Module defining Rhai data types.
 
+pub mod bloom_filter;
 pub mod custom_types;
 pub mod dynamic;
 pub mod error;
@@ -9,6 +10,7 @@ pub mod interner;
 pub mod parse_error;
 pub mod scope;
 
+pub use bloom_filter::BloomFilterU64;
 pub use custom_types::{CustomTypeInfo, CustomTypesCollection};
 pub use dynamic::Dynamic;
 #[cfg(not(feature = "no_std"))]